I noted this was raised some time back and came across it when looking to resolve a similar issue "nwam_event_send: Insufficient permissions for action".

I'm not sure if it even the same issue (I use a Toshiba M10 running Solaris 11 11/11 with an iwh0 net1 interface) but due to lack of progress I thought I'd add my suspicions (in case it helps anyone else) which is that the dhcp server is out of available addresses.

... except that this thread was abandoned more than a year ago.
If you glance in the original poster's username profile, you'll see they have seemingly abandoned the entire forum site at about the same time.

You'll get no help from them.

Moderator Action:
This thread is locked to prevent another resurrection hijack.Moderator Guidance:
When you have a question of an issue, post your own new forum post.
Let people pay attention to YOU and not get it mixed with whtever someone else may have had going on.